. m @ - @ 20 replaced m @ - @ 82 west of he ##sper ##ia , to end at new era instead of mu ##ske ##gon . the new m @ - @ 120 designation replaced m @ - @ 20 south of he ##sper ##ia . m @ - @ 82 now ran from he ##sper ##ia to new ##ay ##go only . the length of the highway was increased in 1973 when the eastern end was moved back to howard city . m @ - @ 46 was re ##routed to follow the us 131 freeway south of howard city to cedar springs , and replaced m @ - @ 57 between cedar springs and cas ##nov ##ia . this freed up the new
. m @ - @ 20 replaced m @ - @ 82 west of hesperia, to end at new era instead of muskegon. the new m @ - @ 120 designation replaced m @ - @ 20 south of hesperia. m @ - @ 82 now ran from hesperia to newaygo only. the length of the highway was increased in 1973 when the eastern end was moved back to howard city. m @ - @ 46 was rerouted to follow the us 131 freeway south of howard city to cedar springs, and replaced m @ - @ 57 between cedar springs and casnovia. this freed up the new